CN108883504B - Method for producing a joint connection by welding and joint connection produced according to said method - Google Patents
Method for producing a joint connection by welding and joint connection produced according to said method Download PDFInfo
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- CN108883504B CN108883504B CN201780019675.2A CN201780019675A CN108883504B CN 108883504 B CN108883504 B CN 108883504B CN 201780019675 A CN201780019675 A CN 201780019675A CN 108883504 B CN108883504 B CN 108883504B
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- metal component
- weld seam
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/008—Filling of continuous seams for automotive applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/06—Cast-iron alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
Abstract
The invention relates to a joint connection having a weld seam (4) which extends between a first metal component (1) and a second metal component (2) and is produced by means of a beam welding method. According to the invention, the weld seam (4) has a main weld seam section (4.1) extending along a joint (3) formed between the metal components (1, 2), the weld seam (4) has a weld seam starting section (4.2) extending from the direction of the joint (3) into the first or second component (1, 2), the first or second component (1, 2) has a recess (2.4) in the region of the weld seam starting section (4.2) that is lowered relative to the upper edges (1.2, 2.2) of the two components (1, 2) forming the joint (3), and/or the weld seam (4) has a weld seam ending section (4.3) that is guided from the direction of the joint (3) into the first or second component (1, 2), wherein the first or second component (1, 2) has a weld seam ending section (4.3) in the region relative to the two components (1, 2), 2) The recess (2.6) forming the descending upper edges (1.2, 2.2) of the joint (3). The invention also relates to a method for producing a joint connection according to the invention.
Description
Technical Field
The invention relates to a joint connection having a weld seam, which is produced by means of a beam welding method, distributed between a first metal component and a second metal component, and to a method for producing a joint connection according to the invention. The invention further relates to a component group comprising a first metal component and a second metal component, which are connected by means of the joint connection according to the invention.
Background
When joining metal components, in particular components made of aluminum, by welding, for example by means of an arc welding method or laser beam welding, a bead projection is produced in the starting region or starting region, which bead projection must be removed by mechanical treatment if such a welded joint is visible to the user, for example in the vehicle body structure.
Disclosure of Invention
The object of the invention is to provide a welded connection having a weld seam extending between a first metal component and a second metal component, which is produced by means of a welding method, in particular an arc welding method. The object of the invention is also to provide a method for producing such a joint connection according to the invention.
The task is fulfilled by a joint connection having the following features.
Such a joint connection, which has a weld seam produced by means of a welding method and distributed between the first metal component and the second metal component, is distinguished in that,
-the weld seam has a weld seam main section extending along a seam formed between the first metal component and the second metal component,
the weld seam has a weld seam start section which extends from the direction of the weld seam into the first or second metal component, wherein the first or second metal component has a depression which is lowered in the region of the weld seam start section relative to the upper edge of the two components forming the weld seam, and/or
The weld seam has a weld seam end section which is guided from the direction of the weld seam into the first or second metal component, wherein the first or second metal component has a recess which is lowered in relation to the upper edge of the two components forming the weld seam in the region of the weld seam end section.
With such a recess realized outside the seam or weld seam, the bulge produced at the start and/or end of the weld seam is balanced, since the recess can accommodate increased solder and thus avoid bulges. This eliminates the need for subsequent machining for removing the bead projection.
In arc welding or laser beam welding, so-called end craters are formed at the ends of the weld seam, which are formed as a result of the volume shrinkage of the solidified melt. Such end craters produce a notching effect in the region of the weld seam and lead to a weakening of the joint connection. The notch effect is greatly reduced by the seam ending in the lowered recess region, since the end craters are only present outside the seam.
According to an advantageous development of the invention, the descending recess is designed to extend conically from the main section of the weld perpendicularly to the plane of the joint. Thereby, there is sufficient space to accommodate the solder of the weld initiating section in the weld initiating region.
A further advantageous embodiment of the invention provides that,
-the first metal component is designed as an extruded profile piece or as a cast component, and
the second metal component is designed as a cast component having at least one recess for receiving a weld seam start section and/or a weld seam end section.
Therefore, the lowered recess can be realized simultaneously with the manufacture of the cast member as the second metal member, thereby causing no additional cost. Preferably, the first metal member and the second metal member are made of an aluminum material.
The second object of the invention is achieved by a method having the following features.
In the method according to the invention, for producing a joint connection having a weld seam produced by means of an energy beam and extending between a first metal component and a second metal component, the following method steps are carried out:
producing a weld seam start section of the weld seam in the region of the first or second metal component, wherein the region is designed as a depression which is lowered compared to the upper edges of the two components forming the weld seam,
directing an energy beam to a joint formed by the first metal component and the second metal component starting from the region of the weld seam starting section, and
-producing a main section of the weld along a joint formed by the first metal component and the second metal component.
The second object of the invention is achieved by a method having the following features.
In the method for producing a joint connection having a weld seam produced by means of an energy beam and extending between a first metal component and a second metal component, the following method steps are carried out:
-producing a main section of the weld seam along a joint formed by the first metal component and the second metal component by means of an energy beam,
the energy beam directed in the direction of the joint produces a weld seam end section of the weld seam in the region of the first or second metal component, wherein the region of the first or second metal component is designed as a depression that is lowered compared to the upper edge of the two components forming the joint.
The elimination of post-machining of the weld bead projection makes up for a little additional cost for longer welds.
The development according to the invention is suitable for producing a joint connection using both methods, namely starting the weld seam start section of the weld seam in the region of a partial recess, and ending the weld seam end section of the weld seam in the region of a partial recess, wherein the partial recesses are located outside the weld seam in one of the two components.
The arc of the arc welding method is preferably used as the energy beam in the method according to the invention.
Drawings
The invention is described in detail below with reference to the accompanying drawings according to embodiments. The figures show:
figure 1 shows a schematic perspective partial view of two components of a component group prepared according to the invention to be joined with a weld seam,
FIG. 2 shows a schematic perspective view of the component according to FIG. 1 with a joint connection according to the invention, an
Fig. 3 shows a schematic perspective view of the non-joined component group according to fig. 1 in a side view.
Detailed Description
Fig. 1 schematically shows a detail of a component group 10, which comprises a first metal component 1 and a second metal component 2, wherein the two components 1 and 2 are opposite each other for forming a seam 3 and are connected according to fig. 2 by means of a weld seam 4 along the seam 3. For producing the weld seam 4, an arc welding method is used, for example.
The weld seam 4 has a plurality of sections according to fig. 2. The main weld section 4.1 thus forms a weld seam extending along the joint 3. The weld seam 4 starts at a weld seam start section 4.2 in the start region 2.1 of the second component 2. This starting region 2.1 forms the starting point for the energy beam, i.e. the arc of the arc welding method, and from there it is guided towards the joint 3 for producing the main section 4.1 of the weld seam. In order to avoid weld bead formation in this starting region 2.1 as a result of the weld bead starting section 4.2 occurring, this starting region 2.1 of the component 2 is designed as a depression 2.4 which is lowered relative to the upper edges 1.2 and 2.2 of the two components 1 and 2 forming the joint 3, as will be explained in more detail below with reference to fig. 1 and 3.
According to this fig. 1, adjoining the end of the seam 3 is a depression 2.4 which is lowered relative to the upper edges 1.2 and 2.2 of the two components 1 and 2 forming the seam 3 and which is implemented in the component 2. The bottom surface 2.40 of the recess 2.4 is thus lower than the adjacent upper surfaces 1.3, 2.3 of the first and second members 1, 2, as shown in fig. 3. According to fig. 2, starting from the main section 4.1 of the weld seam in the direction of the joint 3, the weld seam 4 extends into a recess 2.4, which recess 2.4 widens conically into the component 2, forming an acute angle with respect to the direction of the joint 3 and being perpendicular with respect to the plane of the joint. The conically widening contour of the recess 2.4 proceeding from the seam 3 can be seen in fig. 1 and 3.
Starting from the recess 2.4, the arc is thus directed at the seam 3 at an acute angle to the direction of the seam 3, so that a weld seam start section 4.2 is produced, and is guided there along in order to produce a weld seam main section 4.1, which transitions into the final section of the weld seam 4, i.e. the weld seam end section 4.3.
For this purpose, adjacent to the other end of the seam 3 is a further lowered recess 2.6, which is embodied in the same way as the recess 2.4 and likewise extends from the seam 3 perpendicularly thereto to the contour tapering into the second component 2. The further recess 2.6 forms an end region 2.5 for the weld seam 4.
The further recess 2.6 also has a bottom surface 2.60 which is lowered relative to the upper edges 1.2 and 2.2 of the two components 1 and 2 forming the joint 3. The bottom surface 2.60 of this recess 2.6 is thus in the same way lower than the upper surfaces 1.3 and 2.3 of the adjacent first or second component 1, 2.
Starting from the main section 4.1 of the weld seam which has already been produced in the joint 3, an arc is thereby guided into the further recess 2.6 at an acute angle to the direction of the joint 3, so that an end section 4.3 of the weld seam is produced. In comparison to the joint 3, in this end region 2.5, an increased amount of solder is produced, which is accommodated by the lowered further recess 2.6, so that no bead bulge is produced.
The first metal component 1 is designed as an aluminum extruded profile, while the second metal component is produced as an aluminum cast component. Thereby, local recesses 2.4 and 2.6 can be realized simultaneously in the aluminum cast component by means of a casting process. Whereby no additional costs are required to realize these recesses.
As the first metal member 1, a cast member may be used.
The component 2 is produced as an aluminum cast joint for a vehicle body, which is connected to a further component 5 (see fig. 2) likewise by welding.
…
List of reference numerals
1 first component of a group 10 of components
1.2 Upper edge of first component 1
1.3 Upper surface of first Member 1
2 second component of the group 10
2.1 starting region of the second component 2
2.2 Upper edge of second component 2
2.3 Upper surface of the second member 2
2.4 recesses of the second component 2
2.40 bottom surface of recess 2.4
2.5 end region of the second component 2
2.6 Another recess of the second component 2
2.60 bottom surface of recess 2.5
3 seaming
4 weld seam
4.1 major section of weld
4.2 weld initiation section
4.3 weld end section
5 structural component
10 member set
…
Claims (9)
1. A joint connection having a weld seam (4) extending between a first metal component (1) and a second metal component (2) produced by means of a welding method,
it is characterized in that the preparation method is characterized in that,
-the weld seam (4) has a weld seam main section (4.1) extending along a joint (3) formed between the first metal component (1) and the second metal component (2),
the weld seam (4) has a weld seam starting section (4.2) which extends from the direction of the joint (3) into the first metal component (1) or the second metal component (2), the first metal component (1) or the second metal component (2) having, in the region of the weld seam starting section (4.2), a depression (2.4) which is lowered relative to the upper edges (1.2, 2.2) of the two components (1, 2) forming the joint (3), and/or
The weld seam (4) has a weld seam end section (4.3) which extends from the direction of the joint (3) into the first metal component (1) or the second metal component (2), the first metal component (1) or the second metal component (2) having, in the region of the weld seam end section (4.3), a depression (2.6) which is lowered relative to the upper edges (1.2, 2.2) of the two components (1, 2) forming the joint (3).
2. The bonded connection of claim 1,
it is characterized in that the preparation method is characterized in that,
the descending depressions (2.4, 2.6) are designed in a conically expanding manner, starting from the main section (4.1) of the weld seam, perpendicularly to the plane of the joint (3).
3. The joint connection according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
-the first metal component (1) is designed as an extruded profile or as a cast component,
-the second metal component (2) is designed as a cast component having at least one recess (2.4, 2.6) for accommodating a weld start section (4.2) and/or a weld end section (4.3).
4. The joint connection according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the first metal member (1) and the second metal member (2) are made of an aluminum material.
5. Method for producing a joint connection having a weld seam (4) produced by means of an energy beam, which extends between a first metal component (1) and a second metal component (2), wherein the following method steps are carried out:
-producing a weld seam initiation section (4.2) of the weld seam (4) in the region of the first metal component (1) or the second metal component (2), which is designed as a depression (2.4) that is lowered compared to the upper edges (1.2, 2.2) of the two components (1, 2) forming the joint (3),
-directing an energy beam to a joint (3) formed by the first metal component (1) and the second metal component (2) starting from the region of the weld seam starting section (4.2),
-producing a main section of weld seam (4.1) along a joint (3) formed by a first metal component (1) and a second metal component (2).
6. Method for producing a joint connection having a weld seam (4) produced by means of an energy beam, which extends between a first metal component (1) and a second metal component (2), wherein the following method steps are carried out:
-generating a main section of the weld seam (4.1) along a joint (3) formed by the first metal component (1) and the second metal component (2) by means of an energy beam,
-generating a weld end section (4.3) of the weld seam (4) in the region of the first metal component (1) or the second metal component (2) by means of an energy beam directed from the direction of the joint (3), wherein the region of the first metal component or the second metal component is designed as a depression (2.6) which is lowered compared to the upper edges (1.2, 2.2) of the two components (1, 2) forming the joint (3).
7. Method according to claim 6, characterized in that the method according to claim 5 is carried out first.
8. Method according to one of claims 5 to 7, characterized in that the arc of the arc welding method is used as the energy beam.
9. A set of components comprising a first metal component (1) and a second metal component (2) which are connected with a joint connection according to one of claims 1 to 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016003801.2A DE102016003801B4 (en) | 2016-03-26 | 2016-03-26 | Method for producing a joint connection by welding and joint connection produced according to the method as well as a component group with components joined according to the method |
| DE102016003801.2 | 2016-03-26 | ||
| PCT/EP2017/054616 WO2017167520A1 (en) | 2016-03-26 | 2017-02-28 | Method for producing a joining connection via welding and joining connection produced according to said method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108883504A CN108883504A (en) | 2018-11-23 |
| CN108883504B true CN108883504B (en) | 2020-12-29 |
Family
ID=58191454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780019675.2A Active CN108883504B (en) | 2016-03-26 | 2017-02-28 | Method for producing a joint connection by welding and joint connection produced according to said method |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11135678B2 (en) |
| EP (1) | EP3433050B1 (en) |
| CN (1) | CN108883504B (en) |
| DE (1) | DE102016003801B4 (en) |
| WO (1) | WO2017167520A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207395B (en) * | 2019-07-10 | 2022-12-06 | 河南森源重工有限公司 | Welding method of transformer oil tank |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07246464A (en) | 1994-03-08 | 1995-09-26 | Honda Motor Co Ltd | Structural member |
| DE10349677B4 (en) * | 2003-02-28 | 2009-05-14 | Daimler Ag | Method for laser beam welding with reduced formation of end craters |
| DE102005004787B4 (en) * | 2005-02-01 | 2009-05-20 | Daimler Ag | Use of a sheet and method for producing a laser weld with a reduced end crater |
| JP2008018436A (en) * | 2006-07-11 | 2008-01-31 | Yorozu Corp | Welding method and welded product |
| DE102008029724B4 (en) | 2007-06-26 | 2010-09-30 | V&M Deutschland Gmbh | Method for joining thick-walled metallic pieces by means of welding |
| JP4715813B2 (en) * | 2007-07-02 | 2011-07-06 | パナソニック株式会社 | Pulse arc welding control method and pulse arc welding apparatus |
| DE102009052220A1 (en) * | 2009-11-06 | 2011-05-12 | Volkswagen Ag | Method for the production of a weld seam extending itself in line-forming manner along a guidance line with an extension line, comprises guiding energy beam before the end point along the extension line |
| JP5520595B2 (en) * | 2009-12-28 | 2014-06-11 | 株式会社スノウチ | Backing metal for arc welding and arc welding method using the same |
| CN201760712U (en) * | 2010-08-20 | 2011-03-16 | 抚顺市亨易金属制品有限责任公司 | Firm-type steel door leaf |
| DE102010053526A1 (en) | 2010-12-01 | 2012-06-06 | Keiper Gmbh & Co. Kg | Joint for welding two superimposed metal sheet by fusion welding such as arc fusion welding, comprises weld line that is applied on top of upper metal sheet, and weld seam, which penetrates into upper metal sheet and lower metal sheet |
| AT13491U1 (en) * | 2012-06-22 | 2014-01-15 | Stiwa Holding Gmbh | Joining connection between metallic components and welding device |
| DE102012015777A1 (en) | 2012-08-09 | 2013-03-14 | Daimler Ag | Metal sheet component, useful for forming car body shell, comprises flange having longitudinal extension and breadth vertically oriented in flange plane, where breadth is formed in first region of extension by breadth in second region |
| CN203045113U (en) * | 2013-02-04 | 2013-07-10 | 扬州恒德模具有限公司 | Arc striking device of stainless steel pipe straight seam welding end |
| AT514970B1 (en) * | 2013-10-21 | 2015-09-15 | Automed Holding Gmbh | Joining connection and beam welding process |
| CN204234946U (en) * | 2014-10-11 | 2015-04-01 | 徐州徐工挖掘机械有限公司 | Based on the cut deal butt seam welding connected components of ceramic striking liner |
-
2016
- 2016-03-26 DE DE102016003801.2A patent/DE102016003801B4/en active Active
-
2017
- 2017-02-28 EP EP17707856.5A patent/EP3433050B1/en active Active
- 2017-02-28 CN CN201780019675.2A patent/CN108883504B/en active Active
- 2017-02-28 US US16/085,128 patent/US11135678B2/en active Active
- 2017-02-28 WO PCT/EP2017/054616 patent/WO2017167520A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016003801A1 (en) | 2017-09-28 |
| CN108883504A (en) | 2018-11-23 |
| WO2017167520A1 (en) | 2017-10-05 |
| EP3433050B1 (en) | 2023-06-07 |
| US11135678B2 (en) | 2021-10-05 |
| EP3433050A1 (en) | 2019-01-30 |
| DE102016003801B4 (en) | 2021-10-07 |
| US20190070694A1 (en) | 2019-03-07 |
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